CN201510106U - Electric rice cooker - Google Patents
Electric rice cooker Download PDFInfo
- Publication number
- CN201510106U CN201510106U CN2009201206383U CN200920120638U CN201510106U CN 201510106 U CN201510106 U CN 201510106U CN 2009201206383 U CN2009201206383 U CN 2009201206383U CN 200920120638 U CN200920120638 U CN 200920120638U CN 201510106 U CN201510106 U CN 201510106U
- Authority
- CN
- China
- Prior art keywords
- heating
- temperature
- pid controller
- rice cooker
- electric rice
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides an electric rice cooker which mainly consists of a pot body, a heating disc, a temperature limiter, a heat-insulating switch, a lever switch and a current-limiting resistor, wherein the temperature limiter, the heating disc and a PID controller are connected to form a feedback circuit, when the heating disc is heated to be almost at a functional temperature, the PID controller can decelerate the heating speed of the heating disc through a nonlinear temperature compensation mode, thereby leading the heating disc to smoothly reach the functional temperature; and then the thermal insulation is carried out on the pot body through the lever switch. The electric rice cooker has the remarkable effects that the PID controller is utilized to control the heating circuit of the electric rice cooker, and the PID controller has the nonlinear temperature compensation function, thereby leading the heating disc to have different heating speeds at different heating ranges, leading the heating to be smoother when the functional temperature is reached, and reducing the possibilities of burning rice and dishes.
Description
Technical field
The utility model relates to a kind of electric cooker, especially a kind of electric cooker of controllable temperature.
Background technology
Electric cooker has become daily household electrical appliance now, and the invention of electric cooker has reduced a lot of families and spent in time on cooking.Behind principle of electric cooker and uncomplicated in fact is as long as we understand that a little physics just can understand.When meal was well-done, the water in the electric cooker just can evaporate, and transfers gaseous state to by liquid state.When object transfers gaseous state to by liquid state, absorb certain energy, be called " latent heat ".At this time, temperature can rest on boiling point always.After water evaporates, the temperature in meal pot just can rise once more.There are thermometer and electronic component in the electric cooker the inside, finds that when it temperature rises once more, just can stop automatically cooking.
The temperature limiter of electric cooker is magnet steel again, and a permanent magnet ring and a spring are equipped with in its inside, can press, and the position is in the central authorities of heat-generating disc.When cooking, press when cooking switch, lean on the suction drive lever switch of magnet steel to make power contact keep connecting, when cooking rice, the temperature in the bottom of a pan constantly raises, the suction of permanent magnet ring weakens with the rising of temperature, and the water in interior pot is evaporated, when the temperature in the bottom of a pan reaches 103 ± 2C, the elastic force of the little spring thereon of the suction of magnet ring, temperature limiter drives lever switch by the spring top down, cuts off the electricity supply.But general temperature limiter all can have the late effect of metal heater and cause meal to burn easily.
Summary of the invention
At the problems referred to above, the utility model provides a kind of electric cooker.
A kind of electric cooker, mainly form by pot body, heat-generating disc, temperature limiter, insulation switch, lever switch and current-limiting resistance, it is characterized in that temperature limiter, heat-generating disc and PID controller are connected to a feedback circuit, when heat-generating disc is heated near the function temperature, can slow down by the mode of the non-linear temperature compensation firing rate of heat-generating disc of PID controller, make heat-generating disc reach the function temperature stably, by lever switch the pot body is incubated then.
Remarkable result of the present utility model is the heater circuit that utilizes PID controller control electric cooker, the PID controller has nonlinear temperature compensation function, make heat-generating disc have different firing rates in the different heating interval, during near the function temperature heating more steady, reduced with food burn may.
Description of drawings
Accompanying drawing is the electric cooker schematic diagram
Wherein: 1, the pot body; 2, the insulation switch; 3, lever switch; 4, heat-generating disc.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further: the temperature limiter of electric cooker, heat-generating disc 4 are connected to a feedback circuit with the PID controller, when heat-generating disc 4 is heated near the function temperature, can slow down by the mode of the non-linear temperature compensation firing rate of heat-generating disc 4 of PID controller, make heat-generating disc 4 reach the function temperature stably, flick pot body 1 by lever switch 3 then, being incubated switch 2 redirects simultaneously is keeping warm mode, and pot body 1 is incubated.
The beneficial effects of the utility model are to utilize the heater circuit of PID controller control electric cooker, the PID controller has nonlinear temperature compensation function, so that heat-generating disc has different firing rates in the different heating interval, heating is more steady during near the function temperature, can be family's using electricity wisely, and the minimizing food burns trouble and the loss that brings.
Claims (1)
1. an electric cooker mainly is made up of pot body, heat-generating disc, temperature limiter, insulation switch, lever switch and current-limiting resistance, it is characterized in that temperature limiter, heat-generating disc and PID controller are connected to a feedback circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201206383U CN201510106U (en) | 2009-05-22 | 2009-05-22 | Electric rice cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201206383U CN201510106U (en) | 2009-05-22 | 2009-05-22 | Electric rice cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201510106U true CN201510106U (en) | 2010-06-23 |
Family
ID=42481502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201206383U Expired - Fee Related CN201510106U (en) | 2009-05-22 | 2009-05-22 | Electric rice cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201510106U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105433748A (en) * | 2014-09-02 | 2016-03-30 | 广东德豪润达电气股份有限公司 | Method for precisely controlling temperature of low-temperature cooking machine |
| CN108937559A (en) * | 2018-09-28 | 2018-12-07 | 杭州若奇技术有限公司 | The application method of intelligent pressure pot and intelligent pressure pot |
-
2009
- 2009-05-22 CN CN2009201206383U patent/CN201510106U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105433748A (en) * | 2014-09-02 | 2016-03-30 | 广东德豪润达电气股份有限公司 | Method for precisely controlling temperature of low-temperature cooking machine |
| CN105433748B (en) * | 2014-09-02 | 2017-09-15 | 广东德豪润达电气股份有限公司 | The method of low temperature cooking machine precise control of temperature |
| CN108937559A (en) * | 2018-09-28 | 2018-12-07 | 杭州若奇技术有限公司 | The application method of intelligent pressure pot and intelligent pressure pot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20110522 |